They look like they came straight out of a science fiction movie, but those are
real. Gerd Guenther took that micrograph of spherical colonies of bluegreen
algae Nostoc commune, and won 10th place at the 2011's Olympus
BioScapes competition.

Take a look at more winning entries over at the Olympus BioScapes' website:
Link
- via The
Big Picture